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2d7d946cd3
The right way for IsCatalogRelation/Class to behave is to return true for OIDs less than FirstBootstrapObjectId (not FirstNormalObjectId), without any of the ad-hoc fooling around with schema membership. The previous code was wrong because (1) it claimed that information_schema tables were not catalog relations but their toast tables were, which is silly; and (2) if you dropped and recreated information_schema, which is a supported operation, the behavior changed. That's even sillier. With this definition, "catalog relations" are exactly the ones traceable to the postgres.bki data, which seems like what we want. With this simplification, we don't actually need access to the pg_class tuple to identify a catalog relation; we only need its OID. Hence, replace IsCatalogClass with "IsCatalogRelationOid(oid)". But keep IsCatalogRelation as a convenience function. This allows fixing some arguably-wrong semantics in contrib/sepgsql and ReindexRelationConcurrently, which were using an IsSystemNamespace test where what they really should be using is IsCatalogRelationOid. The previous coding failed to protect toast tables of system catalogs, and also was not on board with the general principle that user-created tables do not become catalogs just by virtue of being renamed into pg_catalog. We can also get rid of a messy hack in ReindexMultipleTables. While we're at it, also rename IsSystemNamespace to IsCatalogNamespace, because the previous name invited confusion with the more expansive semantics used by IsSystemRelation/Class. Also improve the comments in catalog.c. There are a few remaining places in replication-related code that are special-casing OIDs below FirstNormalObjectId. I'm inclined to think those are wrong too, and if there should be any special case it should just extend to FirstBootstrapObjectId. But first we need to debate whether a FOR ALL TABLES publication should include information_schema. Discussion: https://postgr.es/m/21697.1557092753@sss.pgh.pa.us Discussion: https://postgr.es/m/15150.1557257111@sss.pgh.pa.us |
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| .. | ||
| aggregatecmds.c | ||
| alter.c | ||
| amcmds.c | ||
| analyze.c | ||
| async.c | ||
| cluster.c | ||
| collationcmds.c | ||
| comment.c | ||
| constraint.c | ||
| conversioncmds.c | ||
| copy.c | ||
| createas.c | ||
| dbcommands.c | ||
| define.c | ||
| discard.c | ||
| dropcmds.c | ||
| event_trigger.c | ||
| explain.c | ||
| extension.c | ||
| foreigncmds.c | ||
| functioncmds.c | ||
| indexcmds.c | ||
| lockcmds.c | ||
| Makefile | ||
| matview.c | ||
| opclasscmds.c | ||
| operatorcmds.c | ||
| policy.c | ||
| portalcmds.c | ||
| prepare.c | ||
| proclang.c | ||
| publicationcmds.c | ||
| schemacmds.c | ||
| seclabel.c | ||
| sequence.c | ||
| statscmds.c | ||
| subscriptioncmds.c | ||
| tablecmds.c | ||
| tablespace.c | ||
| trigger.c | ||
| tsearchcmds.c | ||
| typecmds.c | ||
| user.c | ||
| vacuum.c | ||
| variable.c | ||
| view.c | ||